I purchased this at iherb because I thought it had more strontium per capsule than the other product I had been using. Unfortunately, the information in the "product detail" is misleading. When I received the bottle, the label said TWO capsules give you 1000 mg of strontium citrate, so that is only about 340 mg of strontium . That is just HALF the strontium citrate per capsule, compared to another brand I have been using. And the capsules are not that much smaller. So to get the same amount of strontium, I needed to take 4 pills a day!